The hypothalamus produces thyrotropin-releasing hormone (TRH), which stimulates the pituitary gland to release thyroid-stimulating hormone (TSH).
Water Opal is a colourless, clear opal with a play of colour. It is rare and valuable in the Realms, where it is used in scrying devices.ater Opals are valuable gems in the game which may be found. This item appears in Baldur's Gate (game) , Baldur's Gate: Enhanced Edition, Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition.
A Mexican fire opal is actually very different than the opal we are used to seeing. While an opal is opaque and white, displaying an iridescent play of colors in every color of the rainbow, the Mexican fire opal is transparent to translucent, with a uniform red, orange, yellow, or brownish body color. Fire opals can come either with or without a play of color or fire.